Effects of raw material texture and activation manner on surface area of porous carbons derived from biomass resources

Zhang, Feng; Li, Guodong; Chen, Jie‐Sheng

doi:10.1016/j.jcis.2008.08.028

Cited by 38 publications

(24 citation statements)

References 34 publications

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“…A report by Zhang et al. described the structural dependence of carbonized products on the texture of biomass precursor and activation method 31. Different biomass resources such as cornstalks, rice straws, pine needles, and pinecone hulls were utilized as carbon sources.…”

Section: Synthesis Of Porous Carbons From Biomass Precursorsmentioning

confidence: 99%

“…The carbon support has a high tendency to absorb the molecular hydrogen on its surface which can be easily activated by the metallic counterpart. For example, a carbon support with extremely high surface area (up to 3000 m 2 g −1 ) can be derived from raw biomass precursors, such as cornstalks, rice straws, pine needles and pinecone hulls, through a simple carbonization and KOH activation process 31. Pt‐catalysts supported on this carbon support showed better performance for the hydrogenation of cinanamaldehyde to hydrocinamyl alcohol than the activated carbon catalyst, owing to a higher surface area.…”

Section: Functionalization Of Carbonaceous Materials For Catalysismentioning

confidence: 99%

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Biomass‐Derived Porous Carbon Materials: Synthesis and Catalytic Applications

et al. 2015

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Novel biomass‐derived porous carbons are attractive candidates for the preparation of carbon‐supported catalysts with a wide range of catalytic applications. Such carbonaceous catalysts are environmentally benign and could provide a cost‐competitive advantage as compared to existing heterogeneous catalysts. Tunable surface properties of carbon materials and excellent physical properties (e.g., hydrophobicity, chemically inert nature, etc.) are compatible with diverse catalysis reactions including organic transformations, as well as electro‐ and photochemical processes in aqueous solutions. This contribution provides an overview on the utilization of different biomass feedstocks and/or biomass‐derived precursors for the synthesis of carbonaceous materials to design advanced catalytic systems and their emerging applications in catalysis.

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Section: Synthesis Of Porous Carbons From Biomass Precursorsmentioning

confidence: 99%

Section: Functionalization Of Carbonaceous Materials For Catalysismentioning

confidence: 99%

Biomass‐Derived Porous Carbon Materials: Synthesis and Catalytic Applications

et al. 2015

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“…Nonetheless, the textural and morphological properties of the starting materials will influence greatly the final properties of the HTC carbon. In fact, compact textured biomass materials will result in small surface areas, while high porosity and surface area can be obtained from loose textured bio-materials [134]. Retention of the morphology of some types of biomass (e.g.…”

Section: Organic Nanoparticles: Carbonmentioning

confidence: 99%

Nanocatalysis for Green Chemistry

Filiciotto¹,

Luque²

2018

Encyclopedia of Sustainability Science and Technology

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Ability to implement and perpetuate industrial and social practices with the protection of the environment as a focus. Green Chemistry: Philosophy focused on the design, development and implementation of environmentally friendly, harmless, and economical chemical processes. Catalysis: Increase of the reaction rate by means of an additional organic/inorganic/hybrid substance called catalyst, which remains unaltered during the course of the reaction. Nanocatalysis: Enhancement of the reaction rate by means of a solid substance of nanometer dimensions. Nanoparticle: Organic/inorganic/hybrid material of nanoscale dimensions. Definition of the Subject Nanocatalysis is a new Green Chemistry era. The continuous increase of recalcitrant pollutants in the environment calls for the sustainable development of the chemical industry. Nanocatalysis has the potential to improve substantially a variety of chemical processes by minimizing energy and feedstock requirements. Most of all, nanocatalysis fulfills all the Green Chemistry principles, allowing the development of truly sustainable processes. Introduction The current environmental and organizational global challenges comprising • climate change mitigation, • depletion of traditional feedstocks (i.e. petroleum), • intensification of the worldwide population density (hence, continuous increase of energy and food demands) call for the development of new technologies and materials, as well as the evolution towards a new mental age where sustainability, durability, recycling, cost-effectiveness, and conservation of limited resources are part of a person's daily life. Anthropological development in the past centuries has seen an incredible technology boom, improving the quality of life of a substantial part of the world population. The particular development of coal-fired steam engines marked the first Industrial Revolution of the 18 th century. At that time, the world saw a shift from less efficient renewable resources (e.g. wood for heat and energy, water wheels/wind mills as early turbines) to fossil fuels, opening incommensurable possibilities in the chemical, energy, and transportation industries. Later in mid-19 th century, the first rock oil well was drilled, and the petroleum era begun. Kerosene was the first commercial oil-based product, substituting whale oil and wood for illumination and heating, respectively. The rapid technological improvement in oil wells exploration made petroleum the major source of commodity chemicals, materials, and fuels. For instance, synthetic petroleum-based plastics promptly flourished in the early 1900s, first with the advent of Bakelite (1907), followed by polystyrene (1929), polyester (1930), polyvinylchloride (1933), and nylon (1935) [1]. Plastics became integrative part of the ordinary life of the average person, starting the concept of disposable objects and the deleterious throwaway-culture. The petroleum industries at that time seemed self-perpetuating, and impacts on the environment were overlooked. The exceptional broad success o...

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“…In general, biomass materials with loose texture favour the formation of high surface area microporous carbon products, whereas only activated carbon with low surface area obtained from raw materials with a compact texture. Zhang et al 133 showed it was possible to prepare activated carbon with a BET surface area 43000 m 2 g À1 depending on the raw material and the preparation conditions. In addition, the initial chemical content of the raw biomass was shown to play a role on the textural characteristics.…”

Section: Textural Characteristics Of Biomass-based Activated Carbonsmentioning

confidence: 99%